Varnishing and gumming machine.



PATENTED AUG. 7, 1906. 4

M. J. MQGAFFRBY. VARNISHING AND GUMMING MACHINE.

APPLICATION FILED MAY 19. 1906.

INVENTOH WITNESSES ra'e/ffl k A 3 I ATTORNEYS N TED sTATEs PATENToEEIoE;

MIcHAEL'JJ MCGAFFREY, OF NEW YORK, N. Y'., ASSIGNOR To CHARLES E. MILLERAND ROBERT H. BENARY, OF NEW YORK, N. Y.

vAnmsl-ime AND eummm'e MACHINE. F

Specification of Letters Patent.

Patented Augu 7, 1906.

, Application filed May 19, 1906. Serial No. 317.687.

. '5 of New York, have invented certain new and useful Im rovements inVarnishin and Gumming achines, of which the fol owing is aspecification, such as will enableithose skilled in the art to which itappertains to to make and use the same.

i This invention relates to that class of machinery which is intendedfor the purpose of covering sheets of. paper or similar material with orwithout printed matter thereon with varnish or with adhesive gum, orwith both;

and the .object of my improvement is to apply the varnish or the gum tothe sheets in such a manner so as to regulate the thickness ofthe filmtobe applied, a further object being to prevent accidental blots ordestructive imprints being transferred to the sheet in said operationfrom the varnishing-rolls, and a still further ob'ect being toprovide'an effective and novel means fortransferrmg the varnished sheetsfromthe operating varnishing-rolls through the steam drying-box to thetake-ofi table;

The invention is fully disclosed in the following specification ,ofwhich'the accompany- 3Q ing drawingsform' a part, in which the separateparts of myimprovement are designated by suitable reference charactersin each of the views, and in which Figure 1 illustrates a diagrammaticview of the entire system of varnishing and gumlnlng, of steam andcool-air drying, and the transmission service needed in connectiontherewith. 2 is a plan view of one part of the same. Fig. 3 is a sideview of'the geari 40 ing. employed with the varnisher; and 4,

shows detail views ofan adjustable shaft bearing used with m im rovedapparatus.

Inapparatus 'of this c ass, and particu larly referring to thevarnishing and gum min transferring-rolls, it has been usual to em oy afountain containing a composition ro er in order to di u the varnish andtransfer the same to t es eets to be covered therewith. A metal rollerwas usually em 5 p1oyed which was kept bearing against the compositionroller and which was adjusted to the latter so asito determine thethickness of the :film of varnish to be transferred from thefountainonto the sheets. This arrangement does not prevent the.transferenceof spots, smuts, &o., accidentall imparted to t ecomposition roller from t e contents of j the fountain to the sheets,such spots, smuts,

&c., leaving their imprint on the composition roller which in turntransfers the same to the sheet and causes the latter to become In orderto obviate this, I provide a 1 useless. I fountain (1, containing thevarnish or gum in fluid state, and a metal roller 1; of comparativelylarge diameter, which is mounted in proper stationary bearings c of themain frame of the a paratus, dips into the foun above this metal roller5 is a tain. Mounte composition roller (1 of smaller diameter than themetal roller 1). This roller (1 rests in vermain frame of the machine.The metal roller 1;, which rotates in the direction shown inthedrawings, will transfer to the compositionrollerd from the fountain asufficient fluid matter to cover its surface with athin .film of gum orvarnish while the latter is ro- 'Atf is shown the usual drum aroundwhichthe sheets are passed and which is PI'O'? vided with the necessarymechanism (not shown in the drawings) to pick u the sheets from theoperating -table 9 an draw the same through its contact with thecomposition roller (1, whereby the sheets become impregnated with thefluid transferredthereon and which also delivers the varnished sheets hto the endless belt is, which carries the wet sheets h to the usualsteam drier i. V As seen in Fig.;'3, a main driving-belt imparts motionby means of a pulley secured to a shaft which latter rotates the endlessbelt is. i This shaft 7' carries a gear 7", which meshes with thegear-wheel 1' attached to the shaft of the revolving drum f. Thegearwheel engages with an intermediate gearwheel' y which in turn mesheswith the gearwheel 7'', fixed to the shaft of the metal roller 6. Theopposite end of said shaft carries-a similar gear-wheel which engageswith the gear-wheel 1' placed on the shaft of the com- .the drawings,the drum f rotates-toward the upper layer of the endless belt is, thecompo? sition ro ler d'is rotated in an opposite direction to the drumf, and-the metal roller bre-' volves in an opposite direction tothelatter and in the same direction as the drum f, the

train of gear-wheelssh'ownin the can be adjusted by means of t e screw eand pipes 41, which provide the box by means of the endless belt 7c.This drawings accomplishing these results.

The adjustable bearing 6 is shown in Fi 4 and consists of an 0 enframework wit a.

vertically-sliding sha bearin block efiwhich held the desired positionby the set-nut thereby regulating the thickness of the fluid matter tobe transferred from the metal means of this arrangement impurities whichinadvertently enter the fluid cannot come in direct contact with thecomposition roller, nor cannot thereby be transferred to the sheet andbecome im ressed thereon.

The steam dryin ox 'i is, as usual, provided with longitu inall-extending steamtlie necessary drying eat to the wet sheets which arecarried into endless belt 7c is referably made of canvas, of nettin orot er suitable material and rests on t e bearing-rollers placed underthe sameand placed within the drying-box at the entrance thereof, asshown at L, and at the exit from the drier, as shown at m, where threerollers are shown, whichwill give to the belt I; a temporary downwardmotlon at this oint. a A11 endless cord encircles the outside of thebelt is and travels therewith. Thiscord may be incorporated into thebelt 7c and form a part therewith, or it may be strung around the entirebelt and sufliciently taut drawn in order to travel with the belt overthe rollers whenever set in motion. This cord, as seen in Fi 2, isplaced midway of the belt and has t e tendency to keep the sheets h ator near the middle of the belt, and es eciallyguides the samedownwardlly at m,w ere the sheets are deposited upon t e second travel--ing belt 0. One or more vertically-traveling be ts or cords p,movinglover independent pulleys and placed in front of the delivery endm of the dri'er i, also deflect the sheets the steam-dried sheets h baodownwardly toward andv upon the second belt 0, which latter, moving inthe direction of the arrows as shown-in Fi 1, conducts toward the drumf, where at the terminal of said'belt o the sheets are deflecteddownwardly a ain at 9 upon a third vertically-traveling ielt 7', whichdelivers the steam and air dried sheet upon the take-ofl' table at 8. Jl

At 9 the deflectors maybe of any ordinary form, such as a sheet ofcardboardor other suitable material, as the dried and coolsheets hbrought thereto by the belt 0 follow mechanically and easily thedirection of the.

second belt 0, for thereason-that otherwise the sheet it would be drawnagain into the drying-boxi by the, adhesive qualities caused by staticelectricity imparted to the sheet h and the belt by the heat of thedrier.

It is obvious that the series of endless belts a may be increased ordecreased-to suit the various requirements incidental "to the class ofwork to be performed, the nature of theloeal roller 6 to the compositionroller d.- By] ity where the apparatus is employed, &c.

By means of this transmission and'delivery system I am enabled toperform automatically by means of my improved machine the entire dryingprocess without the use of manual labor where such help was heretoforeemployed in this class of machinery,

by the use of my improved roller system, as

described in the foregoing description.

Having fullydescrlbed my invention, what I'claim as new, and desiretosecure by Letters Patent, I

v 1. In an apparatus of the class described, a

set of varnishing and ummfng rolls, a stea drier, an endless be tconveying the "we sheets through the steam drier, said endless beltsbeing provided with cords placed centrally thereon and moving with saidbelt, a set of vertically-traveling belts at the delivery end of thesteam drier designed to deflect the sheets when leaving the same ontothe-series of belts traveling horizontally and in alternate drier anddesi and alr-coole -2.' In an apparatus of the class described, afluid-receptacle, a set of varnishing and gunk ming rolls consisting ofa metal roller whichdips up the fluid from the receptacle, and acomposition roller placed above the metal roller and out of reach of thefluid-receptaele, and means for'reg'ulating the desired space betweenthe metal and the "composition directions in the atmosphere outside 'ofthe ed to deliver the steam-dried sheets automatically to the take-offfinishing-table.

roller for the purpose of determining the thick-- ness of the film ofthe fluidlmatter. to

transferred by the composition rolls:- to

sheets to be covered thereby, and a steam drying and air "coolingdevice; provided with endless traveling belts so arranged as to subjectthe sheets when leaving the In testimony that I claim the foregoing asIO varnishing 0r gum'ming rolls automatically my inventionIhave signedmy name,inpresto a series of trips in alternate directions ence of thesubscribing witnesses, this 17th through the lsteam drier find thro'ulghtlfie' day of May,'1906. outer atmos ere rior to t eir arriva at't etake-off table, tl fe endless belt trayeling I MCCAFFREY' through thesteam drier being provided with Witnesses: cords laced centrally thereonand moving F. A. STEWART,

said be t. "O. E. MoLRnANY

